The lymphatic system is an incredibly important part of the body that supports the immune system. It is made up of a network of tubes filled with lymphatic fluid that travels through structures called lymph nodes. This fluid carries a variety of white blood cells like macrophages and lymphocytes that fight infection.

The lymph nodes are the most familiar of the structures that provide a pathway for lymphatic fluid to flow. These nodes are located throughout the body, usually near the major arteries and veins, such as the femoral vein in the leg and arteries in the neck. These nodes filter the lymphatic fluid, and trap any foreign particles, such as bacteria or viruses.

The other structures that facilitate lymphatic flow are lymphatic vessels. These vessels are thin-walled tubes that carry lymphatic fluid throughout the body. They are larger than the lymphatic vessels and are the main pathways of the lymphatic system. They are usually labeled with “lymph,” so if you are looking for a structure through which lymph flows, look for the word “lymph” on a diagram.

The lymphatic system is an essential part of the immune system, and its structures are incredibly important for filtering the lymphatic fluid and keeping the body healthy. When looking for a structure through which lymph flows, look for the word “lymph” to find the pathways of the lymphatic system.